Question about HP Pavilion zd8000 Notebook
Itwouldn get a power surge from a modem because power doesnt go from the modem to the laptop or vice versa, only data signals ... i think you would need to replace the card sound and/or speakers
Posted on May 29, 2011
The power surge probably did damage to your motherboard. if it only blew out your sound then you are lucky. most motherboards dont survive this well. since this is a laptop there isnt anything you can do about it. sorry
Posted on May 29, 2011
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Posted on Jan 02, 2017
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Oct 17, 2016 | Audio Players & Recorders
May 19, 2011 | Kenwood Car Audio & Video
Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn on or stay on.
Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.
You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.
If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.
If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.
Check for loose speaker connections as a root cause for intermittent shutdown.
Maybe a sleep timer clicked it off. Or if it seems to power on but remains silent some other setting like muting, tape monitor got activated. Or the source audio died. Lots of things.
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